新疆吉木萨尔县水溪沟矿区主要断裂对煤层气赋存的影响因素

Study on Influence of Main Faults on Coalbed Methane Reserves in Shuixigou Mining Area of Jimusaer County in Xinjiang

文章经过分析准南煤田水溪沟矿区F;断层周围生产试验井的钻井、气测、测井、排采生产数据,研究F;断层对煤层气赋存的影响因素。对于钻井、录井、地球物理测井获得数据侧面证明了断层部位储层条件好,压裂阶段参数和生产成果得出越靠近断层下盘储层渗透性好,而断层面作为盖层有效保护了气体储存,形成了良好的圈闭,矿区地质构造对于煤层气赋存产生的影响有了新的认识,也为后期开发提出了新的部署思路。

After analyzing the drilling,gas measurement,logging and production data of the production test wells around the F;Fault in the Shuixigou Mining Area of Junnan Coalfield,the influence factors of the F;Fault on coalbed methane reserves are studied.The drilling,logging and geophysical logging data obtained prove the favorable reservoir conditions of the fault area from another angle,the parameters and production results in the fracturing stage show that the closer to the lower fault reservoir,the better the permeability will be.The fault layer as a cover effectively protects the gas reservoir,forming a good trap.It provides a new understanding of the impact of geological structure on coalbed methane reserves in mining areas and also puts forward a new idea for development in the future.